SCREEN_WIDTH = 256
SCREEN_HEIGHT = 192

RAM = 0
VRAM = 1

SCREEN_UP = 1
SCREEN_DOWN = 0
--SCREEN_BOTH = 2

ATTR_X1 = 0
ATTR_Y1 = 1
ATTR_X2 = 2
ATTR_Y2 = 3
ATTR_X3 = 4
ATTR_Y3 = 5
ATTR_COLOR = 6
ATTR_COLOR1 = 7
ATTR_COLOR2 = 8
ATTR_COLOR3 = 9
ATTR_COLOR4 = 10
ATTR_TEXT = 11
ATTR_VISIBLE = 12
ATTR_FONT = 13
ATTR_IMAGE = 14

PLAY_LOOP = 0
PLAY_ONCE = 1
